1.1 本规范涵盖了符合规范的预制钢筋混凝土雨水管道结构之间连接用弹性连接器的最低性能和材料要求 C478/C478M 和管道，以及用于雨水排水系统的预制钢筋混凝土管道和支管之间。 1.1.1 这些连接器旨在防止管道和雨水管道结构之间以及管道和侧向管道之间的土壤迁移。 1.2 以英寸磅或SI单位表示的值应单独视为标准值。SI单位显示在括号中。每个系统中陈述的值可能不完全等同；因此，每个系统应独立使用。合并两个系统的值可能导致不符合标准。附注1: 本规范仅涵盖弹性连接的设计、材料和性能。本规范所涵盖的连接在按照第节进行试验时，足以承受高达6 psi(14 ft)[41 kPa(4.3 m)]的静水压而无泄漏 7 安装系统的渗透量取决于许多因素，而不是雨水管道结构和管道之间的连接，允许的渗透量必须由其他规范和安装管道和系统的适当测试涵盖。 附注2: 对于超过6 psi（14 ft）【41 kPa（4.3 m）】的安装，提醒用户验证连接器将经历的静水头压力。如果施加到连接器上的总压力超过规范的6 psi【41 kPa】限值，建议用户联系连接器制造商，了解连接管道的替代方法或适用的替代标准。1.3 以下注意事项仅适用于试验方法部分，章节 7 本说明书: 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 有关特定的警告语句，请参见 7.2.4 . 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers the minimum performance and material requirements for resilient connectors used for connections between precast reinforced concrete storm sewer structures conforming to Specification C478/C478M and pipes, and between precast reinforced concrete pipe and laterals for storm drainage systems. 1.1.1 These connectors are designed to prevent soil migration between the pipe and storm sewer structure, and between the pipe and lateral. 1.2 The values stated in inch pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Note 1: This specification covers the design, material, and performance of the resilient connection only. Connections covered by this specification are adequate for hydrostatic pressures up to 6 psi (14 ft) [41 kPa (4.3 m)] without leakage when tested in accordance with Section 7 . Infiltration quantities for an installed system are dependent upon many factors other than the connections between storm sewer structures and pipe, and allowable quantities must be covered by other specifications and suitable testing of the installed pipeline and system. Note 2: For installations that exceed 6 psi (14 ft) [41 kPa (4.3 m)], the user is cautioned to verify the amount of hydrostatic head pressure the connector will experience. If the total pressure applied to the connector exceeds the 6 psi [41 kPa] limits of the specification, the user is advised to contact the connector manufacturer for alternative methods of connecting the pipe, or applicable alternative standards. 1.3 The following precautionary caveat pertains only to the test methods portion, Section 7 , of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific warning statement, see 7.2.4 . 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.